Crop rotation method of corns and no-tillage rape

Abstract

The invention discloses a crop rotation method of corns and no-tillage rape. The method comprises the following steps: (1) carrying out rotary tillage on a field block after rape is harvested; (2) carrying out seeding of the corns; (3) carrying our field management until the corns are harvested; (4) carrying out no-tillage direct seeding of the rape after the corns are harvested, wherein the seeding time is October 10 to October 25 every year; (5) carry out field management until the rape is harvested; (6) repeating steps (1) to (5) so as to realize the crop rotation of the corns and the no-tillage rape. The rape can be harvested according to the different functions on the basis of growth vigor and market demands; the harvesting way of the corns is determined according to the seeding timeand the market demands; the silage corns can meet the demand of the animal husbandry for high-quality feed; the grain harvesting time can be prolonged to the upright dehydration time after physiological maturity, so that the mechanical harvesting quality of grains is improved, and the mechanized operation of the middle and lower reaches of the Yangtze River is realized all the year round; furthermore, a paddy field is changed into a dry field, so that greenhouse gas emissions and chemical fertilizer pollution are also reduced, and the sustainable green development of agriculture is promoted.

Description

Technical field [0001] The invention belongs to the field of crop planting, and relates to a crop rotation method for corn no-tillage rape. Background technique [0002] The middle and lower reaches of the Yangtze River is an important food production base in China, with abundant light, temperature and water resources. The main planting systems have been double-cropping rice, rice-oil rotation and rice-wheat rotation for many years. However, due to the impact of climate change and production conditions, etc. The planting structure and configuration have changed. Due to the low economic benefits of early rice and poor rice quality, the area of ​​double-cropping rice has declined, and the light and temperature resources have been seriously wasted. However, in recent years, affected by climate change, seasonal drought has occurred in China. Planting areas in the south also occur frequently, causing serious shortages of water resources, resulting in a decline in production. Among the...

AI Technical Summary

Problems solved by technology

[0002] The middle and lower reaches of the Yangtze River are important grain production bases in my country, with abundant light, temperature and water resources. The main planting systems throughout the year are double-cropping rice, rice-oil rotation and rice-wheat rotation. However, due to climate change and production conditions , the planting structure and configuration have changed. Due to the disadvantages of low economic benefits and poor rice quality of early rice, the area of ​​double-cropping rice has declined, which seriously wastes light and temperature resources. It also occurs frequently in southern planting areas, resulting in a serious shortage of water resources and a decline in yield. Among them, early rice is the most affected, which seriously restricts the growth of early rice. The area of ​​single-cropping mid-season rice increases, forming a planting model dominated by rice oil and rice wheat.